chore(deps): bump soroban-sdk

Bumps the contracts-minor-and-patch group in /contracts with 1 update: [soroban-sdk](https://github.com/stellar/rs-soroban-sdk).


Updates `soroban-sdk` from 26.0.1 to 26.1.0
- [Release notes](https://github.com/stellar/rs-soroban-sdk/releases)
- [Commits](stellar/rs-soroban-sdk@v26.0.1...v26.1.0)

---
updated-dependencies:
- dependency-name: soroban-sdk
  dependency-version: 26.1.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: contracts-minor-and-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]